wave-optics

Related Questions

• A star is moving away from the earth with a velocity of 100 km/s. If the velocity of light is $3 \times {10^8}m/s$ then the shift of its spectral line of wavelength 5700 Å due to Doppler's effect will be

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• When light is incident on a diffraction grating the zero order principal maximum will be

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• In the far field diffraction pattern of a single slit under polychromatic illumination, the first minimum with the wavelength ${\lambda _1}$ is found to be coincident with the third maximum at ${\lambda _2}$. So

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• Unpolarized light of intensity $32Wm^{–2}$ passes through three polarizers such that transmission axes of the first and second polarizer makes and angle 30° with each other and the transmission axis of the last polarizer is crossed with that of the first. The intensity of final emerging light will be

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• A star is moving towards the earth with a speed of $4.5 \times {10^6}$m/s. If the true wavelength of a certain line in the spectrum received from the star is 5890 Å, its apparent wavelength will be about $[c = 3 \times {10^8}m/s]$

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